1210222022121 has 24 divisors (see below), whose sum is σ = 2115346057344. Its totient is φ = 650875708800.

The previous prime is 1210222022083. The next prime is 1210222022131. The reversal of 1210222022121 is 1212202220121.

It is a happy number.

It is not a de Polignac number, because 1210222022121 - 2⁷ = 1210222021993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210222022094 and 1210222022103.

It is not an unprimeable number, because it can be changed into a prime (1210222022131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564995205 + ... + 564997346.

It is an arithmetic number, because the mean of its divisors is an integer number (88139419056).

Almost surely, 2^{1210222022121} is an apocalyptic number.

It is an amenable number.

1210222022121 is a deficient number, since it is larger than the sum of its proper divisors (905124035223).

1210222022121 is a wasteful number, since it uses less digits than its factorization.

1210222022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129992581 (or 1129992578 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1210222022121 its reverse (1212202220121), we get a palindrome (2422424242242).

The spelling of 1210222022121 in words is "one trillion, two hundred ten billion, two hundred twenty-two million, twenty-two thousand, one hundred twenty-one".